ESP32 Lora power over Pin

Q&A Forum › Category: ESP32 › ESP32 Lora power over Pin

vincent asked 4 years ago

Hello
i have this LILYGO® TTGO LORA32 868 Mhz ESP32 LoRa OLED
it is possible to power it over the PINs?
because it will not start like this

8 Answers

0 Vote Up Vote Down

Sara Santos Staff answered 4 years ago

Hi.
What pins are you using to power the board?
Regards,
Sara

0 Vote Up Vote Down

vincent answered 4 years ago

Top Left the Brouwn is Ground GND
Top Left the red is 3.3V

the other two wire should get some SCL SDA Information from a
SparkFun LiPo Battery Manager – Battery Babysitter

and more picture is there http://wombat3.kozo.ch/j/iot-list/165-projects/10033-solar-ttgo-lora
have a nice day
vinc

0 Vote Up Vote Down

Sara Santos Staff answered 4 years ago

Hi again.
I recommend providing 5V to the 5V pin to power the ESP32. I don’t think the OLED will work if you power the board through the 3.3V pin.
Regards,
Sara

0 Vote Up Vote Down

vincent answered 4 years ago

;-( so i cant use my Energy battery 3.7V 1500mAh

and the OLED will be switched off, there is no need in the fields!

0 Vote Up Vote Down

Sara Santos Staff answered 4 years ago

Does it work with 5V?

0 Vote Up Vote Down

vincent answered 4 years ago

the Battery connected is only a 3.7V 1500mAh
Liter energy battery

0 Vote Up Vote Down

Sara Santos Staff answered 4 years ago

It seems you’ll need to use another power source.
Regards,
Sara

0 Vote Up Vote Down

vincent answered 4 years ago

sorry but no, it is a pin problem.
If i change the cable from the Battery Sitter with same output and add a USB Cable it will be powering.